Convert tabs, windows, and extension APIs to feature system.

chrome/renderer/extensions/extension_request_sender.cc

Index: chrome/renderer/extensions/extension_request_sender.cc
diff --git a/chrome/renderer/extensions/extension_request_sender.cc b/chrome/renderer/extensions/extension_request_sender.cc
index 9b6ce3f045c2b5941f37d0174fb68c16841ae670..aa98189c6a971c0fb4fc076860d690bd4eca7a83 100644
--- a/chrome/renderer/extensions/extension_request_sender.cc
+++ b/chrome/renderer/extensions/extension_request_sender.cc
@@ -81,10 +81,6 @@ void ExtensionRequestSender::StartRequest(
     return;
   }
 
-  // TODO(koz): See if we can make this a CHECK.
-  if (!extension_dispatcher_->CheckCurrentContextAccessToExtensionAPI(name))
-    return;
-
   GURL source_url;
   WebKit::WebSecurityOrigin source_origin;
   WebKit::WebFrame* webframe = current_context->web_frame();
@@ -111,6 +107,7 @@ void ExtensionRequestSender::StartRequest(
   params.has_callback = has_callback;
   params.user_gesture =
       webframe ? webframe->isProcessingUserGesture() : false;
+  params.source_context_type = current_context->context_type();
   if (for_io_thread) {
     renderview->Send(new ExtensionHostMsg_RequestForIOThread(
         renderview->GetRoutingID(), params));